OPPO A91 vs Samsung Galaxy A51
Quick Comparison
Samsung Galaxy A51 has better RAM than OPPO A91. In terms of display resolution, OPPO A91 has better resolution of 2400 x 1080 than Samsung Galaxy A51 which has resolution of 2340 x 1080. Both have the same amount of internal memory.
| Name | OPPO A91 | Samsung Galaxy A51 |
| RAM | 4 GB | 6 GB |
|---|---|---|
| Display | 6.4 in | 6.5 in |
| Internal Memory | 128 GB | 128 GB |
| Battery | 4025 mAh | 4000 mAh |
| Camera | 48 MP Quad | 48 MP Quad |
| Price | Rs. 19990 | Rs. 24999 |
Related Products
Detailed Comparison
Price And Launch
The launch Date of the first phone is December 20, 2019. The cost of OPPO A91 is Rs. 19990. The launch Date of the second phone is January 29, 2020 . The cost of Samsung Galaxy A51 is Rs. 24999.
Display comparison
Samsung Galaxy A51 has larger screen size of 6.5 inches in comparison to OPPO A91's 6.4 inch screen. OPPO A91 has AMOLED Screen type where as Samsung Galaxy A51 has Super AMOLED Screen type. OPPO's phone has display density of 408 PPI & Samsung's phone has only 405 PPI display density. In terms of screen to body ratio, Samsung's phone has better screen to body ratio of ~ 87.4% than OPPO's phone ~ 85.5%. OPPO A91 has 20:9 aspect ratio where as Samsung Galaxy A51 has 20:9 aspect ratio.
Memory comparison
Samsung Galaxy A51's larger 6 GB RAM is better for playing games and all with respect to OPPO A91's lower 4 GB RAM. and both have same Internal Memory of 128 GB.
Camera comparison
They both have the same 48 MP Quad Rear Camera. Samsung Galaxy A51 will be better choice if you're looking to click lot of selfies as it has better 32 MP Front Camera in comparison to OPPO A91's 16 MP Front Camera.
Technical comparison
Both the phones has Android Operating System but the first one runs on version 9.0 and the second one on 10 version.
Related Comparisons
Full Comparison
| Name | OPPO A91 | Samsung Galaxy A51 |
| General | ||
| Model | A91 | Galaxy A51 |
| Sim Type | Dual Sim, GSM+GSM | Dual Sim, GSM+GSM |
| Dual Sim | Yes | Yes |
| Sim Size | Nano+Nano SIM | Nano+Nano SIM |
| Device Type | Smartphone | Smartphone |
| Release Date | December 20, 2019 | January 29, 2020 |
| Design | ||
| Dimensions | 73.3 x 160.2 x 7.9 mm | 73.6 x 158.5 x 7.9 mm |
| Weight | 172 g | 172 g |
| Display | ||
| Type | Color AMOLED Screen (16M Colors) | Color Super AMOLED Screen (16M Colors) |
| Touch | Yes | Yes |
| Size | 6.4 inches, 1080 x 2400 pixels | 6.5 inches, 1080 x 2340 pixels |
| Aspect Ratio | 20:9 | 20:9 |
| PPI | ~ 408 PPI | ~ 405 PPI |
| Screen to Body Ratio | ~ 85.5% | ~ 87.4% |
| Glass Type | Corning Gorilla Glass 5 | |
| Notch | Yes, Water Drop Notch | Yes, Punch Hole |
| Memory | ||
| RAM | 4 GB | 6 GB |
| Storage | 128 GB | 128 GB |
| Card Slot | Yes | Yes, upto 512 GB |
| Connectivity | ||
| GPRS | Yes | Yes |
| EDGE | Yes | Yes |
| 3G | Yes | Yes |
| 4G | Yes | Yes |
| VoLTE | Yes, Dual Stand-By | |
| Wifi | Yes, with wifi-hotspot | Yes, with wifi-hotspot |
| Bluetooth | Yes, v4.2, A2DP, LE | Yes, v5.0 |
| USB | Yes, USB-C v2.0 | Yes, USB-C v2.0 |
| USB Features | USB on-the-go, USB Charging | USB on-the-go, USB Charging |
| Extra | ||
| GPS | Yes, with A-GPS, GLONASS, BDS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| Fingerprint Sensor | Yes, In Display | Yes, In Display |
| Face Unlock | Yes | Yes |
| Sensors | Accelerometer, Gyro, Proximity, Compass | Accelerometer, Gyro, Proximity, Compass |
| 3.5mm Headphone Jack | Yes | Yes |
| NFC | Yes | |
| Camera | ||
| Rear Camera | 48 MP ƒ/1.8 (Wide Angle) 8 MP ƒ/2.3 (Ultra Wide) 2 MP ƒ/2.4 2 MP ƒ/2.4 (Depth Sensor) | 48 MP ƒ/2 (Wide Angle) 12 MP ƒ/2.2 (Ultra Wide) 5 MP ƒ/2.4 (Macro) Macro 5 MP ƒ/2.2 (Depth Sensor) |
| Auto Focus | Yes | Yes |
| Features | HDR, Panorama | Panorama, HDR |
| Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Flash | Yes, LED | Yes, LED |
| Front Camera | 16 MP ƒ/2 (Wide Angle) | 32 MP ƒ/2.2 (Wide Angle) |
| Front Video Recording | 1080p @ 30 fps FHD | 1080p @ 30 fps FHD |
| Technical | ||
| OS | Android v9.0 (Pie), upgradable to v11 | Android v10, upgradable to v12 |
| Chipset | Mediatek Helio P70 | Samsung Exynos 9611 |
| CPU | 2 GHz, Octa Core Processor | 2.3 GHz, Octa Core Processor |
| Core Details | 4x2.0 GHz Cortex-A73 & 4x2.0 GHz Cortex-A53 | 4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53 |
| GPU | Mali-G72 MP3 | Mali-G72 MP3 |
| Java | No | No |
| Browser | Yes, supports HTML5 | Yes, supports HTML5 |
| Multimedia | ||
| Yes | Yes | |
| Music | Yes | Yes |
| Video | Yes | Yes |
| FM Radio | Yes | Yes |
| Document Reader | Yes | Yes |
| Battery | ||
| Type | Non-Removable Battery | Non-Removable Battery |
| Size | 4025 mAh | 4000 mAh, Li-Po Battery |
| Fast Charging | Yes, 20W Fast Charging | Yes, 15W Fast Charging |